Relative diagnostic importance of electronystagmography and magnetic resonance imaging in vestibular disorders

2009 ◽  
Vol 123 (8) ◽  
pp. 851-856 ◽  
Author(s):  
S Korres ◽  
M Riga ◽  
G Papacharalampous ◽  
T Chimona ◽  
V Danielidis ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Examination ◽  
Auditory Brainstem ◽  
Resonance Imaging ◽  
Central Nervous System Dysfunction ◽  
Number Of Patients ◽  
Brainstem Response ◽  
Aetiological Diagnosis ◽  
Conclusive Diagnosis

AbstractObjective:The aim of this study was to investigate the contribution of electronystagmography and magnetic resonance imaging to the aetiological diagnosis of vertigo and unsteadiness, in a population in which the history and clinical examination provide no conclusive diagnosis of the origin of the dysfunction (i.e. peripheral or central).Patients and methods:This retrospective study included 102 patients, who underwent full ENT clinical evaluation, history and neurotological assessment (including pure tone audiography, auditory brainstem response testing, electronystagmography and magnetic resonance imaging).Results:Electronystagmography contributed to establishment of a diagnosis in 53/102 patients (52 per cent), whereas magnetic resonance imaging did the same in four of 102 patients (3.9 per cent).Conclusion:Electronystagmography remains the most useful examination for aetiological diagnosis of patients with vertigo and unsteadiness, since the actual number of patients with vertigo and unsteadiness of central origin is small (3.9 per cent), even in a population in which history and clinical examination may indicate an increased probability of central nervous system dysfunction.

scholarly journals Clinical observation of auditory brainstem response. Evaluation of waveforms with magnetic resonance imaging.

1990 ◽  
Vol 33 (4) ◽  
pp. 266-272
Author(s):  
Masahiro Ishikawa ◽  
Hiroshi Hosoi ◽  
Kiyotaka Murata ◽  
Noriko Tamaki ◽  
Hisaya Tanaka ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Auditory Brainstem Response ◽  
Clinical Observation ◽  
Auditory Brainstem ◽  
Response Evaluation ◽  
Resonance Imaging ◽  
Brainstem Response

Vestibular signs and symptoms of volumetric abnormalities of the vestibular aqueduct

2007 ◽  
Vol 122 (6) ◽  
pp. 557-563 ◽  
Author(s):  
L Manzari
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Motion Sickness ◽  
Auditory Brainstem ◽  
Vestibular Evoked Myogenic Potentials ◽  
Resonance Imaging ◽  
Vestibular Evoked Myogenic Potential ◽  
Vestibular Aqueduct ◽  
Brainstem Response

AbstractObjective:The objective of this study was to identify a pattern of signs, symptoms and neuroradiological findings which would assist investigation of vestibular function (especially otolith function) in a group of adult patients with anatomical alterations of the endolymphatic aqueduct and sac.Methods:Fifteen subjects affected by volumetric abnormalities of the vestibular aqueduct were selected from a cohort of patients referred to a tertiary referral neurotological centre between 1 January 2004 and 30 June 2006. All patients underwent accurate clinical history-taking and were evaluated using a standardised set of bedside and instrumental neurotological tests (i.e. audiometry, auditory brainstem response and vestibular evoked myogenic potentials). After these tests, each patient underwent computed tomography and magnetic resonance imaging in order to accurately evaluate the middle ear, labyrinthine capsule and internal auditory canals. These evaluations confirmed clinical suspicion of volumetric abnormalities of the vestibular aqueduct and endolymphatic sac.Results:All the patients with a defined volumetric alteration in the region of the vestibular aqueduct and endolympatic sac reported a typical pattern of symptoms and signs. The most obvious and frequent symptoms in these patients were migraine-related vertigo (using the Neuhauser criteria, 10 of 15, 66.6 per cent), ‘motion sickness’ (12 of 15, 80 per cent), oscillopsia (nine of 15, 60 per cent) and dizziness (14 of 15, 93.3 per cent). Clinical examination results for the selected patients allowed some useful speculative conclusions. During neurotological evaluation, two instrumental methodologies were especially useful diagnostically: vestibular evoked myogenic potentials of the neck, and the mastoid vibration test at 100 Hz.Conclusions:Dysfunction of the vestibular aqueduct is suggested by symptomatology characterised by: migraine-related vertigo, unstable or recurring oscillopsia, lowering of the vestibular evoked myogenic potential threshold, hypoacusis, anamnestic report of motion sickness, and nystagmus induced by mastoid vibration and head-shaking. Computed tomography and magnetic resonance imaging are needed in order to confirm clinical suspicions.

Audiological findings in glomus tumours

1997 ◽  
Vol 111 (3) ◽  
pp. 218-222 ◽  
Author(s):  
William W. Qiu ◽  
Shengguang S. Yin ◽  
Fred J. Stucker ◽  
Mardjohan Hardjasudarma
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Auditory System ◽  
Middle Ear ◽  
Otoacoustic Emissions ◽  
Cerebellopontine Angle ◽  
Auditory Brainstem ◽  
Auditory Brainstem Responses ◽  
Resonance Imaging ◽  
Magnetic Resonance Imaging Mri

AbstractGlomus tumours involving the middle ear and the cerebellopontine angle are reported with emphasis on audiological findings. Magnetic resonance imaging (MRI), angiographic and pathological results are presented. Audiological tests, including impedance audiometry, evoked otoacoustic emissions and auditory brainstem responses, are valuable in evaluation of the effect of glomus tumours on the auditory system as well as their pathological extent.

scholarly journals Inflammatory myofibroblastic tumor of the liver mimicking an infiltrative malignancy in computed tomography and magnetic resonance imaging with Gd-EOB

2014 ◽  
Vol 3 (7) ◽  
pp. 204798161454440 ◽  
Author(s):  
Tahir Durmus ◽  
Carsten Kamphues ◽  
Hendrik Blaeker ◽  
Christian Grieser ◽  
Timm Denecke
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Liver Tumors ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Diagnostic Challenge ◽  
Number Of Patients ◽  
Inflammatory Myofibroblastic Tumors ◽  
Malignant Liver

Inflammatory myofibroblastic tumors (IMT) are a benign tumor entity, which rarely develop in the liver. Surgery is the most common treatment for these lesions as it is difficult to distinguish them from malignant liver tumors and local recurrent growth may occur. IMT is a diagnostic challenge for imaging. Only a limited number of reports of single cases or small number of patients described the imaging features on computed tomography. Reports on IMT appearance on magnetic resonance imaging are scarce. We present a case of IMT of the liver with infiltration of the abdominal wall treated with surgery and describe the imaging features with the use of the hepatobiliary contrast agent, gadoxetic acid (Gd-EOB).

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